19820209969

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{3927127}}^1$

素因数の和:3927244

約数の個数: 12

約数和(自身を含む): 23280014784

約数和(自身を除く): 3459804815

約数列:

[1, 7, 49, 103, 721, 5047, 3927127, 27489889, 192429223, 404494081, 2831458567, 19820209969]

約数ペア:

[(1, 19820209969), (7, 2831458567), (49, 404494081), (103, 192429223), (721, 27489889), (5047, 3927127)]